主变冷却器故障如何处理
1)当冷却器I、II段工作电源失去时，发出“#1、#2电源故障“信号，主变冷却器全停跳闸回路接通，应立即汇报调度，停用该套保护。2)运行中发生I、II段工作电源切换失败时，“冷却器全停”亮，这时主变冷...
Date：2022-01-04
1)当冷却器I、II段工作电源失去时，发出“#1、#2电源故障“信号，主变冷却器全停跳闸回路接通，应立即汇报调度，停用该套保护。2)运行中发生I、II段工作电源切换失败时，“冷却器全停”亮，这时主变冷...
Date：2022-01-04
1)主变差动保护是按循环电流原理设计制造的，而瓦斯保护是根据变压器内部故障时会产生或分解出气体这一特点设计制造的。2)差动保护为变压器的主保护，瓦斯保护为变压器内部故障时的主保护。3)保护范围不同：A...
Date：2022-01-04
根据使用环境特征及防护要求，干式变压器可选择不同的外壳。通常选用IP20防护外壳，可防止直径大于12mm的固体异物进入，为带电部分提供安全屏障。可防止小动物(鼠、蛇、猫、雀等)进入，造成短...
Date：2022-01-04
干式变压器的冷却方式分为自然空气冷却(AN)和强迫空气冷却(AF)。自然空冷时，正常使用条件下，变压器可在额定容量下长期连续运行。强迫风冷时，正常使用条件下，变压器输出容量可提高50％，适用于断续过负...
Date：2022-01-04
After winning the bid for the three-dimensional coil iron core project of Tianjin Electric Power in May, another successful bid was announced at the end of September. Henan Hengyu Electric Group's dry-type transformer won the subcontracting of the "2021 20th batch of material bidding and procurement for external market business of State Grid Tianjin Tendering Company" project....
Date：2024-03-21
May I send my heart to China and give time to mountains and rivers. Home is everyone's cradle, and country is every home's harbor. On the 72nd anniversary of the founding of the People's Republic of China and this National Day holiday, we wish our motherland prosperity and wish the people of the whole country happiness and health! The autumn breeze brings a refreshing breeze, and the fragrance of osmanthus wafts. On the occasion of the National Day holiday, Henan Hengyu Electric Group is showing concern for us...
Date：2024-03-21
On September 23rd, the Henan Provincial Office of Enterprise Service Activities and the Henan Provincial Office of the Joint Conference on Private Economy Work held a teleconference to launch the "Ten Thousand People Helping Ten Thousand Enterprises, Deepening One Alliance and Three Helps" campaign for the private economy in the province. Henan Hengyu Electric Company attended the conference at the designated venue. The meeting discussed the relevant work...
Date：2024-03-21
Quality is the foundation of a product, the condition for achieving its functions, and the reason why users purchase products and services. How to continuously produce high-quality and cost-effective products that meet market demand is the main problem faced by every production-oriented enterprise, and different responses and solutions to this problem have formed different enterprises...
Date：2024-03-22
露从今夜白，月是故乡明。自古以来，月与人，便是一组密不可分的“寄情之选”。值此中秋佳节，月圆时分，恒宇电气恭祝各位同仁、朋友及家人：愿月圆人圆，人间皆安！根据法定假期的规定，结合公司实际情况，河南恒宇...
Date：2022-01-04
品牌是一个国家和地区综合实力的重要标志，加强品牌建设，提升品牌影响力和竞争力，是优化供给、扩大需求、推动高质量发展的重要举措。提升品牌的质量水平，企业要发挥主体作用，企业既是提供产品和服务的市场主体，...
Date：2022-01-04
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